Question

A is a set of three digit numbers whose sum is 28. find A​

Answer 1

Answer:

set of A = { }, Φ, null set, empty set

Step-by-step explanation:

the highest combination of three digits number is 999

sum of the digits = 9+9+9 = 27

there no possible solution for the sum of three digits to be 28.

hence the set A has no three digits number

set of A = { }, Φ, null set, empty set

Answer 2

Answer:

Answer:

set of A = { }, Φ, null set, empty set

Step-by-step explanation:

the highest combination of three digits number is 999

sum of the digits = 9+9+9 = 27

there no possible solution for the sum of three digits to be 28.

hence the set A has no three digits number

set of A = { }, Φ, null set, empty set

hope you get your answers